Answer:
Love me tender
Life is an adventure
When you wish upon a star
I don't know what Quixote means
I have water mills
I've died living
Sancho is pretty decent
That's all I have
Explanation:
Compra is single present
compras is múltiple present
compran is past
compro is single past
The answer is "Que, Cuando, Donde, and Como"